A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5996-00-006-1514
NSN 5998-01-368-5042
NSN 5996-00-681-0490
NSN 7035-01-458-3532
NSN 6320-01-425-1417
NSN 5990-00-474-5609
NSN 5920-01-643-3997
NSN 6685-00-647-3883
NSN 5925-00-756-0462
NSN 6620-01-319-5573
NSN 6610-01-032-5335
NSN 5960-01-018-1489